Under priority investigation criteria, how many non-target birds lead to an investigation?

The correct answer is based on the established threshold in environmental monitoring and investigation protocols concerning non-target bird species. When a specific number of non-target birds is identified, it triggers an investigation to assess potential impacts from environmental factors such as pesticide exposure, habitat disturbances, or other anthropogenic influences.

In this context, the established criterion indicates that an investigation is warranted when the count reaches 50 non-target birds. This number is significant because it reflects a level of occurrence that could suggest a larger, systemic issue affecting the population or the ecosystem as a whole. Monitoring at this threshold helps ensure that any adverse environmental impacts are addressed promptly, facilitating the protection of wildlife and the natural environment.

The significance of setting this threshold at 50 rather than lower or higher figures is rooted in data-driven assessments of ecological impacts and the effective management of wildlife populations. The criteria are designed to focus resources on the most impactful incidents while acknowledging the inherent variability in wildlife populations.